Bucket capacity rule of thumb: 0.04 m³ per tonne of operating weight for standard material. Adjust down for dense rock, up for light material.
Bucket patterns by application
- General-purpose (GP) — most construction work; smooth interior, replaceable teeth
- Heavy-duty (HD) — abrasive material; thicker wear plates
- Rock — quarry and mining; reinforced corners, hardened teeth
- V-bucket — canal and trench profiling
- Tilt bucket — grading; pivots ±45° for slope work
- Skeleton — material sorting; lets fines fall through
Pick the right capacity
| Machine weight | GP bucket | Rock bucket |
|---|---|---|
| 20 tonne | 0.8-1.0 m³ | 0.7-0.85 m³ |
| 30 tonne | 1.2-1.5 m³ | 1.0-1.3 m³ |
| 40 tonne | 1.6-2.0 m³ | 1.4-1.7 m³ |
| 70 tonne | 3.0-3.8 m³ | 2.5-3.2 m³ |
| 90 tonne | 4.0-5.0 m³ | 3.5-4.5 m³ |